IAT is separate but good call cause that would definitely skew things if it was still connected through the MAF.
I will reset the trims.
At this point I think I need to diagnose a bigger issue. I am going to plug the brake booster and a couple other vacuum lines I have hooked up to help rule out a vacuum leak. Then I will have to do a compression test and leak down.
Anything else at this point that makes sense? It has the LS9 cam but it should make more than 50kpa at idle. I would expect in the 30s.